feat(tvix/castore): bump [Directory,File]Node size to u64 r/6946

Having more than 4GiB files is quite possible (think about the NixOS
graphical installer, and an uncompressed iso of it).

No wire format changes.

Change-Id: Ia78a07e4c554e91b93c5b9f8533266e4bd7f22b6
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9950
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI

5 files changed, 23 insertions, 25 deletions

diff --git a/tvix/castore-go/castore.go b/tvix/castore-go/castore.go
index c9e3757885..40aeaf1911 100644
--- a/tvix/castore-go/castore.go
+++ b/tvix/castore-go/castore.go
@@ -12,9 +12,9 @@ import (
 // The size of a directory is calculated by summing up the numbers of
 // `directories`, `files` and `symlinks`, and for each directory, its size
 // field.
-func (d *Directory) Size() uint32 {
-	var size uint32
-	size = uint32(len(d.Files) + len(d.Symlinks))
+func (d *Directory) Size() uint64 {
+	var size uint64
+	size = uint64(len(d.Files) + len(d.Symlinks))
 	for _, d := range d.Directories {
 		size += 1 + d.Size
 	}
diff --git a/tvix/castore-go/castore.pb.go b/tvix/castore-go/castore.pb.go
index 5323d6c923..f792a5d390 100644
--- a/tvix/castore-go/castore.pb.go
+++ b/tvix/castore-go/castore.pb.go
@@ -116,7 +116,7 @@ type DirectoryNode struct {
 	// A credulous implementation won't reject an excessive size, but this is
 	// harmless: you'll have some ordinals without nodes. Undersizing is
 	// obvious and easy to reject: you won't have an ordinal for some nodes.
-	Size uint32 `protobuf:"varint,3,opt,name=size,proto3" json:"size,omitempty"`
+	Size uint64 `protobuf:"varint,3,opt,name=size,proto3" json:"size,omitempty"`
 }
 
 func (x *DirectoryNode) Reset() {
@@ -165,7 +165,7 @@ func (x *DirectoryNode) GetDigest() []byte {
 	return nil
 }
 
-func (x *DirectoryNode) GetSize() uint32 {
+func (x *DirectoryNode) GetSize() uint64 {
 	if x != nil {
 		return x.Size
 	}
@@ -183,7 +183,7 @@ type FileNode struct {
 	// The blake3 digest of the file contents
 	Digest []byte `protobuf:"bytes,2,opt,name=digest,proto3" json:"digest,omitempty"`
 	// The file content size
-	Size uint32 `protobuf:"varint,3,opt,name=size,proto3" json:"size,omitempty"`
+	Size uint64 `protobuf:"varint,3,opt,name=size,proto3" json:"size,omitempty"`
 	// Whether the file is executable
 	Executable bool `protobuf:"varint,4,opt,name=executable,proto3" json:"executable,omitempty"`
 }
@@ -234,7 +234,7 @@ func (x *FileNode) GetDigest() []byte {
 	return nil
 }
 
-func (x *FileNode) GetSize() uint32 {
+func (x *FileNode) GetSize() uint64 {
 	if x != nil {
 		return x.Size
 	}
@@ -424,12 +424,12 @@ var file_tvix_castore_protos_castore_proto_rawDesc = []byte{
 	0x12, 0x12, 0x0a, 0x04, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0c, 0x52, 0x04,
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+	0x18, 0x03, 0x20, 0x01, 0x28, 0x04, 0x52, 0x04, 0x73, 0x69, 0x7a, 0x65, 0x12, 0x1e, 0x0a, 0x0a,
 	0x65, 0x78, 0x65, 0x63, 0x75, 0x74, 0x61, 0x62, 0x6c, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x08,
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@@ -447,10 +447,10 @@ var file_tvix_castore_protos_castore_proto_rawDesc = []byte{
 	0x28, 0x0b, 0x32, 0x1c, 0x2e, 0x74, 0x76, 0x69, 0x78, 0x2e, 0x63, 0x61, 0x73, 0x74, 0x6f, 0x72,
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-	0x31, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x2d, 0x67, 0x6f, 0x3b, 0x63, 0x61, 0x73, 0x74, 0x6f, 0x72, 0x65, 0x76, 0x31, 0x62, 0x06, 0x70,
+	0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
diff --git a/tvix/castore-go/castore_test.go b/tvix/castore-go/castore_test.go
index 0d2d65208e..c237442f4e 100644
--- a/tvix/castore-go/castore_test.go
+++ b/tvix/castore-go/castore_test.go
@@ -23,7 +23,7 @@ func TestDirectorySize(t *testing.T) {
 			Symlinks:    []*castorev1pb.SymlinkNode{},
 		}
 
-		assert.Equal(t, uint32(0), d.Size())
+		assert.Equal(t, uint64(0), d.Size())
 	})
 
 	t.Run("containing single empty directory", func(t *testing.T) {
@@ -37,7 +37,7 @@ func TestDirectorySize(t *testing.T) {
 			Symlinks: []*castorev1pb.SymlinkNode{},
 		}
 
-		assert.Equal(t, uint32(1), d.Size())
+		assert.Equal(t, uint64(1), d.Size())
 	})
 
 	t.Run("containing single non-empty directory", func(t *testing.T) {
@@ -51,7 +51,7 @@ func TestDirectorySize(t *testing.T) {
 			Symlinks: []*castorev1pb.SymlinkNode{},
 		}
 
-		assert.Equal(t, uint32(5), d.Size())
+		assert.Equal(t, uint64(5), d.Size())
 	})
 
 	t.Run("containing single file", func(t *testing.T) {
@@ -66,7 +66,7 @@ func TestDirectorySize(t *testing.T) {
 			Symlinks: []*castorev1pb.SymlinkNode{},
 		}
 
-		assert.Equal(t, uint32(1), d.Size())
+		assert.Equal(t, uint64(1), d.Size())
 	})
 
 	t.Run("containing single symlink", func(t *testing.T) {
@@ -79,7 +79,7 @@ func TestDirectorySize(t *testing.T) {
 			}},
 		}
 
-		assert.Equal(t, uint32(1), d.Size())
+		assert.Equal(t, uint64(1), d.Size())
 	})
 
 }
diff --git a/tvix/castore-go/rpc_blobstore.pb.go b/tvix/castore-go/rpc_blobstore.pb.go
index 1afc826744..6dbf648a4c 100644
--- a/tvix/castore-go/rpc_blobstore.pb.go
+++ b/tvix/castore-go/rpc_blobstore.pb.go
@@ -285,11 +285,10 @@ var file_tvix_castore_protos_rpc_blobstore_proto_rawDesc = []byte{
 	0x76, 0x69, 0x78, 0x2e, 0x63, 0x61, 0x73, 0x74, 0x6f, 0x72, 0x65, 0x2e, 0x76, 0x31, 0x2e, 0x42,
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 }
 
 var (
diff --git a/tvix/castore-go/rpc_directory.pb.go b/tvix/castore-go/rpc_directory.pb.go
index f658c6b60c..d65d646e71 100644
--- a/tvix/castore-go/rpc_directory.pb.go
+++ b/tvix/castore-go/rpc_directory.pb.go
@@ -180,11 +180,10 @@ var file_tvix_castore_protos_rpc_directory_proto_rawDesc = []byte{
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 }
 
 var (